142 NEOTROPICAL PSELAPHIDAE 



grenadensis Raffray. 1904. Grenada, Windward Islands. 

 lebasi Aube. 1844. Colombia and Venezuela. 

 tubericornis Raffray. 1917. Paraguay. 

 vincentiana Raffray. 1904. St. Vincent, Windward Islands. 



Group XL 



The following key is unsatisfactory since it does not take into account 

 two of the species assigned to this group, pentachiroides (Schaufuss) of Brazil 

 and intacta (Sharp) of Guatemala. As to the latter species, I can make noth- 

 ing of the description which would effectually separate it from its congeners. 

 Sharp says that the fifth antennal segment is greatly enlarged and foveolate- 

 impressed in front. The large fifth segment is a group characteristic, and I do 

 not know what face of the segment is meant by the "front". This, like many 

 other species, must await examination of the types before proper allocation 

 can be made. Intacta has, according to Sharp, a length of two millimeters, is 

 known only from a male specimen which has the middle tibiae supplied with 

 an acute spine or mucro near the apex. 



Antennal segment V transversely triangular, the lateral or external 

 face straight, the mesial or internal face prolonged into an obtuse 

 ogival dilation; known only from the male, the metasternum being 

 laterally convex, and medianly entirely concave, with subcarinated 



margins; 1.9 mm. long globulosa (PI. XVII, 15) 



Antennal segment V ovate, not mesially produced 2 



2. Antennal segment V with the dorsal face distinctly and densely 



punctate, and the ventral face with three irregular impressions; 

 1.9 mm. long; known from the male sex, with the metasternum and 



last sternite flattened falsa (PI. XVII, 14) 



Antennal segment V with the dorsal face glabrous, polished and the 

 ventral face with a large foveoid impression 3 



3. Ventral face of fifth antennal segment with a large, median foveoid 



excavation, half-oval in shape with the basal margin of the excava- 

 tion truncate, and the lateral margins converging apically to a very 

 rounded apex; 1.65 mm. long; known only from the male sex. . . . 



callosa (PI. XVII, 13) 



Ventral face of the fifth antennal segment with an elongate, sulci- 

 form excavation, this excavation being ovate medianly, with a much 

 narrower apical and basal continuance of the ovate portion, so that 

 the lateral margins present a subdentate appearance seen on looking 

 directly into the excavation sarcinaria (PI. XVII, 11, 12) 



callosa (Raffray). 1890. Venezuela. (Bryaxis) 



falsa Raffray. 1904. Mexico. 



globulosa Raffray. 1904. Brazil. 



intacta (Sharp). 1887. Guatemala. (Bryaxis) 



pentachiroides (Schaufuss). 1887. Brazil. 



sarcinaria (Schaufuss). 1887. Mexico. 



